Display apparatus

ABSTRACT

A display apparatus includes a display area in which an image is displayed and a peripheral area that is a non-display area, a base substrate, a plurality of data lines located on the base substrate in the display area and extending to the peripheral area, a plurality of detour data lines on the base substrate in the display area and in the peripheral area, and a pad portion in the peripheral area, the detour data lines and at least one of the data lines being directly connected to the pad portion, and at least one of the data lines being not directly connected to the pad portion, wherein at least one of the data lines not directly connected to the pad portion is electrically connected to the detour data line.

CROSS-REFERENCE TO RELATED APPLICATION

Korean Patent Application No. 10-2018-0000945, filed on Jan. 3, 2018, inthe Korean Intellectual Property Office, and entitled: “DisplayApparatus,” is incorporated by reference herein in its entirety.

BACKGROUND 1. Field

Example embodiments relate to a display apparatus.

2. Description of the Related Art

A cathode ray tube (CRT) display apparatus has been used as a displayapparatus due to its performance and competitive price. However the CRTdisplay apparatus has disadvantages of a large size and poorportability. Therefore a display apparatus such as a plasma displayapparatus, a liquid crystal display apparatus and an organic lightemitting display apparatus has been highly regarded due to the smallsize, light weight and low-power-consumption of these types of displayapparatus.

SUMMARY

Embodiments are directed to a display apparatus including a display areain which an image is displayed and a peripheral area that is anon-display area, a base substrate, a plurality of data lines located onthe base substrate in the display area and extending to the peripheralarea, a plurality of detour data lines on the base substrate in thedisplay area and in the peripheral area, and a pad portion in theperipheral area, the detour data lines and at least one of the datalines being directly connected to the pad portion, and at least one ofthe data lines being not directly connected to the pad portion, whereinat least one of the data lines not directly connected to the pad portionis electrically connected to the detour data line.

The display apparatus may further include an insulation layer betweenthe data lines and the detour data lines, and a contact hole extendingthrough the insulation layer in the peripheral area, wherein the atleast one of the data lines not directly connected to the pad portion iselectrically connected to the detour data line through the contact hole.

The detour data line may overlap the data lines in the display area.

The display apparatus may further include a plurality of pixels having amatrix form in a first direction and a second direction perpendicular tothe first direction, the plurality of pixels including a thin filmtransistor in the display area. The data lines may extend in the seconddirection. The pad portion may be disposed in the peripheral areaadjacent to the display area in the second direction.

A folding area may be in the peripheral area between the pad portion andthe display area. The base substrate in the folding area may be bentsuch that the pad portion overlaps at least a portion of the displayarea.

At least one of the data lines may overlap one of the detour data linesin the folding area.

The display apparatus may further include a buffer layer on the basesubstrate, an active layer on the buffer layer, a gate insulation layeron the active layer, a data conductive pattern including the data lineson the gate insulation layer, and a data insulation layer on the dataconductive pattern. The buffer layer, the gate insulating layer, and thedata insulating layer may not be present in the folding area, and aninsulating pattern may be on the base substrate in the folding area.

The display area may include a front portion on a plane defined by thefirst direction and the second direction and an edge portion adjacent tothe front portion in the first direction. The data lines may be in thefront portion and in the edge portion. The edge portion may be benttoward a third direction perpendicular to the first direction and thesecond direction.

The data lines in the edge portion may be connected to the pad portionthrough the detour data line. The data lines in the front portion may beconnected to the pad portion without a connection passing through thedetour data line.

An edge portion of the display area may include a rounded portion. Thedata lines may be in the rounded portion and in a middle of the displayarea. The data lines in the rounded portion may be connected to the padportion through the detour data lines. The data lines in the middle ofthe display area are connected to the pad portion without a connectionpassing through a detour data line.

The display area may be circular. The data lines may be in a side of thedisplay area in the first direction and in a middle of the display area.The data lines located at a side of the display area in the firstdirection may be electrically connected to the pad portion through thedetour data line. The data lines in the middle of the display area maybe connected to the pad portion without a connection passing through adetour data line.

Each of the pixels may include a contact pad located on the insulationlayer and electrically connected to the thin film transistor, a firstelectrode electrically connected to the contact pad, a second electrodeon the first electrode, and a light emitting structure between the firstelectrode and the second electrode. The detour data lines and thecontact pad may be formed from a same layer.

The detour data lines may be between the data lines and the basesubstrate.

The data lines may include a first data line, an n-th data line, ann+1-th data line and a x-th data line, n and x being natural numberswhere 1<n<n+1<x). The detour data lines may include a first detour dataline and a n-th data line. The contact hole may include a first contacthole and an n-th contact hole. The first data line may be electricallyconnected to the first detour data line through the first contact hole.The n-th data line may be electrically connected to the n-th detour dataline through the n-th contact hole. The first data line and the n-thdata line may be electrically connected to the pad portion through thefirst detour data line and the n-th detour data line. The x-th data linemay be electrically connected to the pad portion without a connectionpassing the detour data line.

Embodiments are also directed to a display apparatus including a displayarea in which an image is displayed and a peripheral area that is anon-display area, a first data line in the display area and extending tothe peripheral area, a first detour data line in the display area andextending to the peripheral area, an insulation layer between the firstdata line and the first detour data line to insulate the first data linefrom the first detour data line, a pad portion in the peripheral areaand connected to a driving chip configured to provide data signal to thefirst data line, and a first contact hole through the insulation layerin the peripheral area. The first data line may be connected to thefirst detour data line through the first contact hole. The first detourdata line may be electrically connected to the pad portion.

The display apparatus may further include an n-th data line and x-thdata line that are located in the display area and extend into theperipheral area, n and x being natural numbers where 1<n<x, an n-thdetour data line that is located in the display area and extends intothe peripheral area, an n-th contact hole through the insulation layerin the peripheral area. The n-th data line may be electrically connectedto the n-th detour data line through the n-th contact hole. The n-thdetour data line may be electrically connected to the pad portion. Thex-th data line may be electrically connected to the pad portion.

The n-th detour data line, the first detour data line, and the x-th dataline may be sequentially connected to the pad portion along onedirection.

The display apparatus may further include a n+1-th data line and ax+1-th data line that are located in the display area and extend intothe peripheral area. The n+1-th and x+1-th data lines may beelectrically connected to the pad portion. The n+1-th data line, thex-th data line, the n-th detour data line, and the first detour dataline may be electrically connected to the pad portion in order along onedirection.

The display area may include a front portion on a plane defined by afirst direction and a second direction perpendicular to the firstdirection, and an edge portion adjacent to the front portion in thefirst direction. The edge portion may be bent toward a third directionthat is perpendicular to the first and second directions. The first dataline may be in the edge portion of the display area, and the x-th dataline may be in the front portion.

A rounded portion may be at the edge of the front portion of the displayarea. The display apparatus may further include an m-th data line at theedge portion of the display area and extending into the peripheral area,m being a natural number where 1<m<n, and an m-th detour data line atthe edge portion of the display area and extending into the peripheralarea. The n-th data line may be located to correspond to the roundportion of the front portion. The m-th contact hole may pass through theinsulation layer in the peripheral area. The m-th data line may beelectrically connected to the m-th detour data line through the m-thcontact hole. The m-th detour data line may be electrically connected tothe pad portion.

The display area may be circular.

BRIEF DESCRIPTION OF THE DRAWINGS

Features will become apparent to those of skill in the art by describingin detail exemplary embodiments with reference to the attached drawingsin which:

FIG. 1 illustrates a plan view of a display apparatus according to anexample embodiment;

FIG. 2 illustrates an enlarged view of a lower left portion of thedisplay apparatus of FIG. 1;

FIG. 3A illustrates a cross-sectional view taken along a line I-I′ ofFIG. 2;

FIG. 3B illustrates a cross-sectional view taken along a line II-II′ ofFIG. 2;

FIG. 4 illustrates an enlarged view to explain a connection of a dataline DL, a detour data line CDP and a pad portion BP of the displayapparatus of FIG. 1;

FIG. 5 illustrates a perspective view of an example in which the displayapparatus of FIG. 1 is used in an electronic device;

FIG. 6 illustrates a plan view of a display apparatus according to anexample embodiment;

FIG. 7 illustrates an enlarged view of a lower left portion of thedisplay apparatus of FIG. 6;

FIG. 8 illustrates a plan view of a display apparatus according to anexample embodiment;

FIG. 9 illustrates an enlarged view illustrating a lower left portion ofthe display apparatus of FIG. 8;

FIG. 10 illustrates a plan view of a display apparatus according to anexample embodiment;

FIG. 11 illustrates an enlarged view of a lower left portion of thedisplay apparatus of FIG. 10;

FIG. 12 illustrates an enlarged view to explain a connection of a dataline DL, a detour data line CDP and a pad portion BP of the displayapparatus of FIG. 10;

FIGS. 13A and 13B illustrate cross-sectional views of a displayapparatus according to an example embodiment; and

FIGS. 14 and 15 illustrate views showing a comparison between aperipheral area of a general display apparatus a peripheral area of adisplay apparatus according to an embodiment.

DETAILED DESCRIPTION

Example embodiments will now be described more fully hereinafter withreference to the accompanying drawings; however, they may be embodied indifferent forms and should not be construed as limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey exemplary implementations to those skilled in the art.

In the drawing figures, the dimensions of layers and regions may beexaggerated for clarity of illustration. It will also be understood thatwhen a layer or element is referred to as being “on” another layer orsubstrate, it can be directly on the other layer or substrate, orintervening layers may also be present. Further, it will be understoodthat when a layer is referred to as being “under” another layer, it canbe directly under, and one or more intervening layers may also bepresent. In addition, it will also be understood that when a layer isreferred to as being “between” two layers, it can be the only layerbetween the two layers, or one or more intervening layers may also bepresent. Like reference numerals refer to like elements throughout.

FIG. 1 illustrates a plan view of a display apparatus according to anexample embodiment.

Referring to FIG. 1, the display apparatus may include a display area DAin which an image is displayed and a peripheral area PA, which is anon-display area adjacent to and surrounding the display area DA.

The display area DA may include a front portion (refers to DAF of FIG.5), which is disposed on a plane formed by a first direction D1 and asecond direction D2 \perpendicular to the first direction D1, an upperedge portion (refers to DAU of FIG. 5), which is disposed adjacent tothe front portion in the second direction D2 and connected to an upperside of the front portion, a left edge portion (refers to DAL of FIG.5), which is disposed adjacent to the front portion in the firstdirection D1 and connected to a left side of the front portion, a rightedge portion (refers to DAR of FIG. 5), which is disposed adjacent tothe front portion in the first direction D1 and connected to right sideof the front portion, and a lower edge portion (refers to DAD of FIG.5), which is disposed adjacent to the front portion in the seconddirection D2 and connected to a lower side of the front portion.

Four corners of the front portion, for example, points where the upperedge portion, the right edge portion, the lower edge portion, and theleft edge portion meet with each other, may be rounded.

The display apparatus may include a plurality of pixels for displayingthe image. The plurality of pixels may be arranged in a matrix form inthe display area DA. Each pixel may include a thin film transistor. Aplurality of data lines DL and a plurality of gate lines may beelectrically connected to the pixels. In addition, the display apparatusmay further include a plurality of detour data lines CDL disposed in thedisplay area DA and electrically connected to the respective data linesDL.

The data lines DL may be arranged in the first direction D1. Each of thedata lines DL may extend in the second direction D2. Each of the gatelines may extend in the first direction D1 and cross the data lines DL.

The peripheral area PA is a non-display area. The peripheral area PA maybe disposed adjacent to the display area DA to surround edges of thedisplay area DA. A circuit structure for driving the pixels in thedisplay area DA may be formed in the peripheral area PA.

The peripheral area PA may include a first portion, which is adjacent tothe upper edge portion, the right edge portion and the left edgeportion, and a second portion, which is adjacent to the lower edgeportion. The second portion of the peripheral area PA may include adriver area DRA in which a pad portion BP is disposed and a foldingarea, which is folded such that the driver area DRA is located at a backsurface of the display apparatus. The first portion, which is adjacentto the upper edge portion, the right edge portion, and the left edgeportion, may have a narrower width than the second portion.

The data lines DL connected to the pixels in the left edge portion maybe electrically connected to the detour data lines CDL through contactholes (see CNT1 and the like in FIG. 2) formed in the peripheral areaPA. Thus, an end of a data line DL that is connected to the pixel in theleft edge portion and an end of the detour data line CDL may extendthrough the display area DA to the peripheral area PA. The end of thedata line DL and the end of the detour data line CDL may be connected toeach other through the contact hole formed in the peripheral area PA.Each detour data line CDL may extend from the respective contact holethrough the display area DA to overlap the respective data line DL. Thedetour data lines may be connected to the pad portion BP in the driverarea DRA of the peripheral area PA. The data lines DL that areelectrically connected to the pixels in the upper edge portion and thefront portion may extend in the second direction D2 and may beelectrically connected to the pad portion BP in the driver area DRA ofthe peripheral area PA.

A driving circuit chip may be mounted on the pad portion BP. The padportion BP may include a plurality of terminals electrically connectedto the respective data lines.

The right edge portion may have a structure in which data lines anddetours data lines are connected to each other, similar to the structureof the left edge portion.

According to example embodiments, the data lines DL disposed in the leftedge portion, the right edge portion, and the rounded portion of thecorners of the front portion in the display area DA of the displayapparatus may be electrically connected to the pad portion BP throughthe detour data lines CDL. The pad portion BP may be disposed in thedriver area DRA of the peripheral area PA which is adjacent to the loweredge portion of the display area DA of the display apparatus.Accordingly, a spider line connected to the data line in the left edgeportion, the right edge portion, and the peripheral area PA adjacent tothe rounded portion may be omitted such that a width of the peripheralarea PA can be narrowed.

In addition, the folding area FA may be folded (see FIG. 5), and thedriver area DRA may be disposed on the back surface of the display areaDA to overlap with the display area DA. Thus, a display apparatus inwhich the non-display area is minimized can be provided.

FIG. 2 illustrates an enlarged view of a lower left portion of thedisplay apparatus of FIG. 1.

Referring to FIGS. 1 and 2, the data lines DL may include a first dataline DL1, a m-th data line DLm, a n−1-th data line DLn−1, a n-th dataline DLn, a n+1-th data line DLn+1, a n+2-th data line DLn+2, and a x-thdata line DLx.

The detour data line CDL may include a first detour data line CDL1, am-th detour data line CDLm, a n−1-th detour data line CDLn−1, and a n-thdetour data line CDLn.

Each of the first data line DL1, the m-th data line DLm, the n−1-th dataline DLn−1, the n-th data line DLn, the n+1-th data line DLn+1, then+2-th data line DLn+2 and the x-th data line, and the x-th data lineDLx may extend in the second direction D2. A portion of the data linesDL may extend to the peripheral area PA passing through the display areaDA.

The first data line DL1 and the m-th data line DLm may be disposed inthe left edge portion of the display area DA, and may extend in thesecond direction D2. The n−1-th data line DLn−1 and the n-th data lineDLn may be disposed at the rounded portion of the front portion of thedisplay area DA, and may extend in the second direction D2.

The n+1-th data line DLn+1, the n+2-th data line DLn+2 and the x-th dataline DLx may be disposed in the front portion of the display area DA,and extend to the pad portion BP through the folding area FA in thesecond direction.

In the peripheral area PA, the first data line DL1, the m-th data lineDLm, the n−1-th data line DLn−1 and the n-th data line DLn may beelectrically connected to the first detour data line CDL1, the m-thdetour data line CDLm, the n−1-th detour data line CDLn−1 and the n-thdetour data line CDLn through a first contact hole CNT1, a m-th contacthole CNTm, a n−1-th contact hole CNTn−1, and a n-th contact hole CNTn,respectively.

The first detour data line CDL1 may extend from the first contact holeCNT1 of the peripheral area PA adjacent to the left edge portion of thedisplay area DA through the display area DA and the folding area FA tothe pad portion BP. For example, the first detour data line CDL1 mayextend from the first contact hole CNT1 along a direction opposite tothe second direction D2, along the first direction D1 and along thesecond direction D2 to the pad portion BP with forming a C-shape.

The m-th detour data line CDLm may extend from the m-th contact holeCNTm in the peripheral area PA adjacent to the left edge portion of thedisplay area DA through the display area DA and the folding area FA tothe pad portion BP. For example, the m-th detour data line CDLm mayextend from the m-th contact hole CNTm along the direction opposite tothe second direction D2, along the first direction D1 and along thesecond direction D2 to the pad portion BP with forming a C-shape.

The n−1-th detour data line CDLn−1 may extend from the n−1-th contacthole CNTn−1 in the peripheral area PA adjacent to the rounded portion ofthe front portion of the display area DA through the display area DA andthe folding area FA to the pad portion BP. For example, the n−1-thdetour data line CDLn−1 may extend from the n−1-th contact hole CNTn−1along the direction opposite to the second direction D2, along the firstdirection D1 and along the second direction D2 to the pad portion BPwith forming a C-shape.

The n-th detour data line CDLn may be extend from the n-th contact holeCNTn in the peripheral area PA adjacent to the rounded portion of thefront portion of the display area DA through the display area DA and thefolding area FA to the pad portion BP. For example, the n-th detour dataline CDLn may extend from the n-th contact hole CNTn along the directionopposite to the second direction D2, along the first direction D1 andalong the second direction D2 to the pad portion BP with forming aC-shape.

The data lines and the detour data lines may be formed in a similararrangement in the right edge portion of the display area DA of thedisplay apparatus.

The data lines DL that are disposed in the left edge portion, therounded portion of the front portion and the right edge portion may beconnected to the pad portion BP by the detour data line CDL in thedisplay area DA. The data lines DL and the detour data lines CDL in thefolding area FA and the driver area DRA may be a fan-in in the seconddirection D2.

FIG. 3A illustrates a cross-sectional view taken along a line I-I′ ofFIG. 2. FIG. 3B illustrates a cross-sectional view taken along a lineII-II′ of FIG. 2.

Referring to FIGS. 1, 2, 3A and 3B, the display apparatus may include abase substrate 100, a buffer layer 110, a gate insulation layer 120, agate conductive pattern, a data insulation layer 130, an insulationpattern 135, a data conductive pattern, a first thin film transistorTFTa, a second first thin film transistor TFTb, a first insulation layer140, detour data conductive pattern, a second insulation layer 150, afirst electrode EL1, a pixel defining layer 160, a light emittingstructure 170, a second electrode EL2 and a thin film encapsulation(TFE) layer 180.

The base substrate 100 may include a transparent insulation substrate.For example, the base substrate 100 may include a flexible transparentresin substrate. Examples of the transparent resin substrate for thebase substrate 100 may include a polyimide-based resin, an acryl-basedresin, a polyacrylate-based resin, a polycarbonate-based resin, apolyether-based resin, a sulfonic acid containing resin, apolyethyleneterephthalate-based resin, etc. For example, the basesubstrate 100 may be a polyimide resin film.

The buffer layer 110 may prevent diffusion of metal atoms and/orimpurities from the base substrate 100. Additionally, the buffer layer110 may adjust a heat transfer rate of a successive crystallizationprocess for an active pattern, thereby obtaining a substantially uniformactive pattern. If the base substrate 100 has a relatively irregularsurface, the buffer layer 110 may improve flatness of the surface of thebase substrate 100. The buffer layer 110 may be formed using a siliconcompound. For example, the buffer layer 110 may include silicon oxide(SiOx), silicon nitride (SiNx), silicon oxynitride (SiOxNy), siliconoxycarbide (SiOxCy), silicon carbon nitride (SiCxNy), etc.

The buffer layer 110 may be omitted from the folding area FA of theperipheral area PA. For example, the buffer layer 110 may not be formedor may be removed in the folding area FA. If the buffer layer 110, whichis an inorganic film, were to be formed in the folding area FA, damageto the buffer layer 110, such as cracks, could occur when the displayapparatus is folded in the folding portion FA.

The active pattern may be disposed on the buffer layer 110. The activepattern may include a first active pattern ACTa of the first thin filmtransistor TFTa, which is disposed in the display area DA and forms apixel structure, and a second active pattern ACTb, which is disposed inthe peripheral area PA and forms a driving circuit. The driving circuitmay be an amorphous silicon gate (ASG) circuit.

The first active pattern ACTa may include a first drain region Da and afirst source region Sa doped by an impurity and a first channel regionCa between the first drain region Da and the first source region Sa. Thesecond active pattern ACTb may include a second drain region Db and asecond source region Sb doped by an impurity and a second channel regionCb between the second drain region Db and the second source region Sb.

The gate insulation layer 120 may be disposed on the active pattern. Thegate insulation layer 120 may be formed using silicon compound such assilicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride(SiOxNy), silicon oxycarbide (SiOxCy), silicon carbon nitride (SiCxNy),etc.

The gate insulation layer 120, like the buffer layer 110, may be omittedfrom the folding area FA of the peripheral area PA. For example, thegate insulation layer 120 may not be formed or may be removed in thefolding area FA.

The gate conductive pattern may be disposed on the gate insulation layer120. The gate conductive pattern may include a first gate electrode GEaof the first thin film transistor TFTa, a second gate electrode GEb ofthe second thin film transistor TFTb, and a signal line such as a gateline for transmitting a signal to drive the pixel. The gate conductivepattern may include a metal, an alloy, a metal nitride, a conductivemetal oxide and/or a transparent conductive material. For example, thegate conductive pattern may be formed by metal such as copper, aluminum,etc.

The data insulation layer 130 may be disposed on the gate insulationlayer 120 on which the gate conductive pattern is disposed. The datainsulating layer 130 may be formed using a silicon compound such assilicon oxide (SiOx), silicon nitride (SiNx), silicon oxynitride(SiOxNy), silicon oxycarbide (SiOxCy), silicon carbonitride (SiCxNy),etc.

Like the buffer layer 110 and the gate insulation layer 120, the datainsulation layer 130 may not be formed in the folded area FA of theperipheral area PA. For example, the data insulating layer 130 may notbe formed or may be removed in the folding area FA.

The insulation pattern 135 may be disposed on the base substrate 100 inthe folding area FA where the buffer layer 110, the gate insulationlayer 120, and the data insulation layer 130 are not formed or removed.The insulation pattern 135 may eliminate or minimize a step differencefrom the data insulation layer 130 in the folding area FA. Theinsulation pattern 135 may include an organic insulating material thatis not easily damaged when the folding area FA is folded.

The data conductive pattern may be disposed on the data insulation layer130 and the insulation pattern 135. The data conductive pattern mayinclude a first source electrode SEa and a first drain electrode DEa ofthe first thin film transistor TFTa, a second source electrode SEb and asecond drain electrode DEb of the second thin film transistor TFTb, anda signal line such as a data line DL for transmitting a signal to drivethe pixel. The data conductive pattern may include a metal, an alloy, ametal nitride, a conductive metal oxide and/or a transparent conductivematerial. For example, the data conductive pattern may be formed using ametal having high conductivity, such as copper, aluminum, or the like.The data conductive pattern may include a plurality of layers. Forexample, the data conductive pattern may include a titanium layer, analuminum layer on the titanium layer, and a titanium layer on thealuminum layer. The data conductive pattern may further includeterminals constituting the pad portion BP.

The data line DL may include the first data line DL1. The first dataline DL1 may be electrically connected to the first source electrode SEaand may extend from the display area DA to the peripheral area PA.

The first active pattern ACTa, the first gate electrode GEa, the firstsource electrode SEa and the first drain electrode DEa may constitutethe first thin film transistor TFTa.

The second active pattern ACTb, the second gate electrode GEb, thesecond source electrode SEb and the second drain electrode DEb mayconstitute the second thin film transistor TFTb.

The first insulation layer 140 may be disposed on the data insulationlayer 130 and the insulation pattern 135 on which the data conductivepattern is disposed. The first insulating layer 140 may include anorganic insulating material, and may have a substantially flat uppersurface while sufficiently covering the data conductive pattern.

The detour data conductive pattern may be formed on the first insulationlayer 140. The detour data conductive pattern may include a detour dataline CDL and a contact pad CP. The detour data conductive pattern mayinclude a metal, an alloy, a metal nitride, a conductive metal oxideand/or a transparent conductive material. For example, the detour dataconductive pattern may be formed using a metal having high conductivity,such as copper, aluminum, or the like. The detour data conductivepattern may include a plurality of layers. For example, the detour dataconductive pattern may include a titanium layer, an aluminum layer onthe titanium layer, and a titanium layer on the aluminum layer.

The detour data line CDL may extend from the peripheral area PA throughthe display area DA and the peripheral area PA with the folding area FAto be connected to the pad portion BP. The detour data line CDL mayinclude a first detour data line CDL1. The detour data conductivepattern may further include terminals constituting the pad portion BP.For example, a portion of the terminals of the pad portion BP may beformed in the data conductive pattern, and another portion of theterminals may be formed in the detour data conductive pattern. Inaddition, in some example embodiments, the pad portion BP may have astructure directly connected to the detour data line CDL and the dataline DL or a structure connected through a contact hole.

The first detour data line CDL1 may be electrically connected to thefirst data line DL1 through a first contact hole CNT1 formed through thefirst insulation layer 140 in the peripheral area PA. Accordingly, thefirst thin film transistor TFTa in the display area DA may be connectedto the pad portion BP through the first data line DL1 and the firstdetour data line CDL1.

The contact pad CP may have a structure that connects the drainelectrode and the first electrode in each pixel structure. The contactpad CP may be connected to the first drain electrode DEa through acontact hole formed through the first insulation layer 140.

The pad portion BP may be formed on the data insulation layer 130 in theperipheral area PA. The pad portion BP may be electrically connected tothe detour data line CDL and the data line DL. A driving circuit chipmay be mounted on the pad portion BP.

The second insulation layer 150 may be disposed on the first insulationlayer 140 where the detour data conductive pattern is disposed. Thesecond insulation layer 150 may include an organic insulating materialand may have a substantially planar top surface while sufficientlycovering the detour data conductive pattern.

The first electrode EL1 may be disposed on the second insulation layer150. The first electrode EL1 may be electrically connected to thecontact pad CP through a contact hole formed through the secondinsulating layer 150. Accordingly, the first electrode EL1 may beelectrically connected to the first thin film transistor TFTa.

The pixel defining layer 160 may be disposed on the second insulationlayer 150 on which the first electrode EL1 is disposed. The pixeldefining layer 160 may include an organic material or an inorganicmaterial. For example, the pixel defining layer 160 may be formed usingphotoresist, acryl-based resin, polyacryl-based resin, polyimide-basedresin, a silicon compound, etc. The pixel defining layer 160 may definean opening that exposes the first electrode EL1.

The light emitting structure 170 may be positioned on the firstelectrode EL1 exposed by the opening of the pixel defining layer 160.The light emitting structure 170 may extend on a sidewall of the openingof the pixel defining layer 160. The light emitting structure 170 mayinclude an organic emission layer (EL), a hole injection layer (HIL), ahole transport layer (HTL), an electron transport layer (ETL), anelectron injection layer (EIL), etc. In some example embodiments, thehole injection layer, the hole transport layer, the electron transportlayer, and the electron injection layer may be formed in common tocorrespond to a plurality of pixels. In some example embodiments, aplurality of organic light emitting layers may be formed using lightemitting materials for generating different colors of light such as ared color, a green color, or a blue color in accordance with colorpixels of the display device. In some example embodiments, the organiclight emitting layer of the of the light emitting structure 170 mayinclude a plurality of stacked light emitting materials for generating ared light, a green light or a blue light to thereby emitting a whitelight. Elements of the light emitting structure 170 may be commonlyformed so as to correspond to a plurality of pixels, and each pixel canbe divided by a color filter layer.

The second electrode EL2 may be disposed on the pixel defining layer 160and the light emitting structures 170.

The thin film encapsulation (TFE) layer 180 may be formed on the secondinsulating layer 150, the pixel defining layer 160, and the secondelectrode EL2. The TFE layer 180 may have a structure in which at leastone organic layer made of organic material and at least one inorganiclayer made of inorganic materials are alternately stacked as a thin filmencapsulation layer. For example, the TFE layer 180 may include a firstinorganic layer 182, an organic layer 184 disposed on the firstinorganic layer 182, and a second inorganic layer 184 disposed on theorganic layer 184.

FIG. 4 illustrates an enlarged view to explain connection of a data lineDL, a detour data line CDP and a pad portion BP of the display apparatusof FIG. 1.

Referring to FIGS. 1, 2 and 4, first to n-th data lines may correspondto the left edge portion and the rounded portion of the front portion ofthe display area DA. The first to n-th data lines may be connected tofirst to n-th detour data lines. The n+1-th to x-th data lines maycorrespond to the left portion of the front portion of the display area,and the n+1-th to x+1-th data lines may overlap with at least one of thedetour data lines in the display area DA. A x+1-th data line and theplurality of data lines after the x+1-th data line may correspond to themiddle of the front portion of the display area DA. The x+1-th data lineand the like may be directly connected to the pad portion BP withoutoverlapping the detour data line. (Here, x>n+1).

Thus, in the pad portion BP, a plurality of terminals are electricallyconnected to the n-th data line to the first data line, the n+1-th dataline to the x-th data line, and the x+1-th data line to the plurality ofdata lines after the x+1-th data line in order along the firstdirection, respectively. Thus, the data signals provided to the datalines may be reversed partly in reverse order by the detour data lines.

In addition, when a size of the pad portion BP is narrower than a widthof the data lines DL and the entire detour data lines CDL, the datalines DL and the detour data lines CDL may be a fan-in extending fromthe folding area FA and the peripheral area PA along the seconddirection D2.

FIG. 5 illustrates a perspective view of an example in which the displayapparatus of FIG. 1 is used in an electronic device.

Referring to FIGS. 1 and 5, the display apparatus may include a displayarea DA including a front portion DAF, an upper edge portion DAU, aright edge portion DAR, a lower edge portion DAD, and a left edgeportion DAL. the upper edge portion DAU, the right edge portion DAR, thelower edge portion DAD and the left edge portion DAL may bend gently ina third direction D3 perpendicular to the first direction D1 and thesecond direction D2. The folding area FA connected to the lower edge DADmay be bent such that the driver area DRA is disposed on the backsurface of the display apparatus. Accordingly, a four-sided edge displaymay be implemented, and the driver area DRA on which the driving circuitchip is mounted may be positioned at the back surface of the displayapparatus such that the non-display area recognized by the user can beminimized. The display apparatus may be used to manufacture a smartphone having a four-sided edge display.

The front portion DAF may include the rounded portion at the edge. Aspider line connected to a plurality of data lines is not formed in theperipheral area PA which is the non-display area adjacent to the roundedportion. Instead, the detour data line CDL is formed to pass through thedisplay area DA, such that a width of the non-display region adjacent tothe edge of the rounded portion may be minimized.

According to the present example embodiments, the data lines disposed inthe left edge portion LDA, the right edge portion RDA and the roundedportion of the edges of the front portion FDA may be connected to thepad portion BP, which is disposed in the driver area DRA of theperipheral area PA adjacent to the lower edge portion of the displayarea DA through the detour data line CDL. Accordingly, there is nospider line connected to the data line in the peripheral area PAadjacent to the left edge portion, the right edge portion, and therounded portion. As a result, a width of the peripheral area PA may bereduced.

In addition, the folding area FA may be folded, and the driver area DRAmay be disposed on the back surface of the display area DA to overlapwith the display area DA. Thus, a display apparatus in which thenon-display area is minimized may be provided.

In the present embodiment, the display apparatus has been described asbeing a flexible display in which a portion of the display apparatusthat includes a flexible base substrate is capable of bending. In someimplementations, a connection structure of the data line, the detourdata line, and the contact hole for reducing the width of the peripheralarea as disclosed herein may be applied to a general rigid organic lightemitting display, a liquid crystal display, or the like.

FIG. 6 illustrates a plan view of a display apparatus according to anexample embodiment.

Referring to FIGS. 6 and 7, the display apparatus may be substantiallysame as the display apparatus of FIGS. 1 and 2, except that four cornerportions of the display area DA form rounded portions instead of edgeportions of a display area. Therefore, the repetitive description issimplified.

The display apparatus may include a display area DA in which an image isdisplayed and a peripheral area PA which is a non-display area adjacentto and surrounding the display area DA.

The display area DA may be formed on a plane formed by a first directionD1 and a second direction D2 that is perpendicular to the firstdirection D1.

The peripheral area PA may be disposed adjacent to the display area DA,and may surround edges of the display area DA. A circuit structure fordriving the pixels in the display area DA may be formed in theperipheral area PA.

The peripheral area PA adjacent to the display area in the seconddirection D2 may include a driver area DRA for accommodating the padpart BP and a folding area FA that is foldable to locate the driver areaDRA on a back surface of the display apparatus.

The display apparatus may include a plurality of pixels for displayingan image. The plurality of pixels may be arranged in a matrix form, inthe display area DA. The pixels may each include a thin film transistorand The display apparatus may include a plurality of data lines and aplurality of gate lines that are electrically connected to the pixels.The display apparatus may further include a plurality of detour datalines CDL disposed in the display area DA and electrically connected tothe respective data lines DL.

The data lines DL may include a first data line DL1, a n-th data lineDLn, a n+1-th data line DLn+1, and a x-th data line DLx.

The detour data line CDL may include a first detour data line CDL1 and an-th detour data line CDLn.

Each of the first data line DL1, the n-th data line DLn, the n+1-th dataline DLn+1, and the x-th data line DLx may extend in the seconddirection D2A portion of the data lines may extend through the displayarea DA to the peripheral area PA.

The first data line DL1 and the n-th data line DLn may be disposed tocorrespond to the rounded portion of the display area DA, and may extendin the second direction D2. The n+1-th data line DLn+1 and the x-th dataline DLx may be disposed in a middle of the display area DA, and mayextend in the second direction.

The first data line DL1, and the n-th data line DLn may be electricallyconnected to the first detour data line CDL1, and the n-th detour dataline CDLn, respectively through a respective first contact hole CNT1 anda n-th contact hole CNTn in the peripheral area PA.

The first detour data line CDL1 may extend from the first contact holeCNT1 of the peripheral area PA through the display area DA and thefolding area FA to the pad portion BP. For example, the first detourdata line CDL1 may extend from the first contact hole CNT1 along thefirst direction D1 and along the second direction D2 to the pad portionBP with forming a L-shape.

The n-th detour data line CDLn may extend from the n-th contact holeCNTn of the display area DA through the display area DA and the foldingarea FA to the pad portion BP. For example, the n-th detour data lineCDLn may extend from the n-th contact hole CNTn along the firstdirection D1 and along the second direction D2 to the pad portion BPwith forming a L-shape.

The data lines and the detour data lines may be formed in a similararrangement in a right edge portion of the display area DA of thedisplay apparatus.

According to the example embodiments, the data lines DL disposed in therounded portion of the corners of the display area DA of the displayapparatus may be electrically connected to the pad portion BP throughthe detour data lines CDL. The pad portion BP may be disposed in thedriver area DRA of the peripheral area PA. Accordingly, there is nospider line connected to the data line in the peripheral area PAadjacent to the rounded portion, and a width of the peripheral area PAcan be narrowed.

In addition, the folding area FA may be folded, and the driver area DRAmay be disposed on the back surface of the display area DA to overlapwith the display area DA. Thus, a display apparatus in which thenon-display area is minimized can be provided.

FIG. 8 illustrates a plan view of a display apparatus according to anexample embodiment. FIG. 9 illustrates an enlarged view of a lower leftportion of the display apparatus of FIG. 8.

Referring to FIGS. 8 and 9, the display apparatus may be substantiallythe same as the display apparatus of FIGS. 1 and 2 or FIGS. 7 and 8,except that the display area DA is circular. Therefore, the repetitivedescription will be simplified.

The display apparatus may include a display area DA in which an image isdisplayed and a peripheral area PA, which is a non-display area adjacentto and surrounding the display area DA.

The display area DA may have a circular shape formed on a plane formedby a first direction D1 and a second direction D2 that is perpendicularto the first direction D1.

The peripheral area PA may be disposed adjacent to the display area DAand may surround the display area DA. A circuit structure for drivingthe pixels in the display area DA may be formed in the peripheral areaPA.

The peripheral area PA adjacent to the display area in the seconddirection D2 may include a driver area DRA that accommodates the padpart BP and a folding area FA, which is foldable to locate the driverarea DRA on a back surface of the display apparatus.

The display apparatus may include a plurality of pixels to display theimage. The plurality of pixels may be arranged in a matrix form in thedisplay area DA. The pixels may includes a thin film transistor. Aplurality of data lines and a plurality of gate lines may beelectrically connected to the pixels. In addition, the display apparatusmay further include a plurality of detour data lines CDL disposed in thedisplay area DA and electrically connected to the respective data linesDL.

The data lines DL may include a first data line DL1, a n-th data lineDLn, a n+1-th data line DLn+1, and a x-th data line DLx.

The detour data line CDL may include a first detour data line CDL1 and an-th detour data line CDLn.

Each of the first data line DL1, the n-th data line DLn, the n+1-th dataline DLn+1, and the x-th data line DLx may extend in the seconddirection D2A portion of the data lines may extend through the displayarea DA to the peripheral area PA.

The first data line DL1 and the n-th data line DLn may extend in thesecond direction D2 and may be arranged to correspond to one side of thedisplay area DA which has the circular shape in the first direction D1.The n+1-th data line DLn+1 and the x-th data line DLx may extend in thesecond direction D2 and may be disposed in a middle of the display areaDA.

The first data line DL1 and the n-th data line DLn may be electricallyconnected to the first detour data lines CDL1 and the n-th detour dataline CDLn through a first contact hole CNT1 and a n-th contact hole CNTnin the peripheral area PA,

The first detour data line CDL1 may extend from the first contact holeCNT1 in the peripheral area PA through the display area DA and thefolding area FA to the pad portion BP. For example, the first detourdata line CDL1 may extend from the first contact hole CNT1 along adirection opposite to the second direction D2, along the first directionD1 and along the second direction D2 to the pad portion BP with forminga C-shape.

The n-th detour data line CDLn may be extend from the n-th contact holeCNTn in the peripheral area PA in the display area DA through thedisplay area DA and the folding area FA to the pad portion BP. Forexample, the n-th detour data line CDLn may extend from the n-th contacthole CNTn along the direction opposite to the second direction D2, alongthe first direction D1 and along the second direction D2 to the padportion BP with forming a C-shape.

The data lines and the detour data lines may be formed in a similararrangement in a right portion of the display area DA of the displayapparatus.

According to the example embodiments, the data lines DL disposed at bothsides of the display area DA in the first direction D1 may beelectrically connected to the pad portion BP through the detour datalines CDL. The pad portion BP may be disposed in the driver area DRA ofthe peripheral area PA, which is disposed at a lower portion of thedisplay apparatus. Accordingly, there is no spider line connected to thedata line in left and right sides of the peripheral area PA, and a widthof the peripheral area PA can be narrowed.

In addition, the folding area FA may be folded, and the driver area DRAmay be disposed on the back surface of the display area DA to overlapwith the display area DA. Thus, a display apparatus in which thenon-display area is minimized can be provided.

FIG. 10 illustrates a plan view of a display apparatus according to anexample embodiment. FIG. 11 illustrates an enlarged view of a lower leftportion of the display apparatus of FIG. 10. FIG. 12 illustrates anenlarged view to explain a connection of a data line DL, a detour dataline CDP and a pad portion BP of the display apparatus of FIG. 10.

Referring to FIGS. 10, 11, and 12, the display apparatus may besubstantially same as the display apparatus of FIGS. 1, 2 and 4, exceptfor an order in which a detour data line CDL and a data line DL areconnected to a pad portion BP. Therefore, the repetitive descriptionwill be simplified.

The display apparatus may include a display area DA in which an image isdisplayed and a peripheral area PA, which is a non-display area adjacentto and surrounding the display area DA.

The display apparatus may include a plurality of pixels arranged in amatrix form to display the image. The plurality of pixels may bedisposed in the display area DA The plurality of pixels may include athin film transistor. A plurality of data lines and a plurality of gatelines may be electrically connected to the pixels. In addition, thedisplay apparatus may further include a plurality of detour data linesCDL disposed in the display area DA and electrically connected to therespective data lines DL.

The data lines DL may include a first data line DL1, a m-th data lineDLm, a n−1-th data line DLn−1, a n-th data line DLn, a n+1-th data lineDLn+1, a n+2-th data line DLn+2, and a x-th data line DLx.

The detour data line CDL may include a first detour data line CDL1, am-th detour data line CDLm, a n−1-th detour data line CDLn−1, and a n-thdetour data line CDLn.

Each of the first data line DL1, the m-th data line DLm, the n−1-th dataline DLn−1, the n-th data line DLn, the n+1-th data line DLn+1, then+2-th data line DLn+2 and the x-th data line, and the x-th data lineDLx may extend in the second direction D2, so that a portion of the datalines may extend to the peripheral area PA passing the display area DA.

The first data line DL1, the m-th data line DLm, the n−1-th data lineDLn−1 and the n-th data line DLn may be electrically connected to thefirst detour data line CDL1, the m-th detour data line CDLm, the n−1-thdetour data line CDLn−1 and the n-th detour data line CDLn through afirst contact hole CNT1, a m-th contact hole CNTm, a n−1-th contact holeCNTn−1, and a n-th contact hole CNTn in the peripheral area PA.

The pad portion BP may connect the n+1-th data line DLn+1, the n+2-thdata line DLn+2, the x-th data line DLx, the first detour data lineCDL1, the m-th detour data line CDLm, and the n-th detour data line CDLnin order along the first direction D1. The pad portion BP may include aplurality of terminals arranged in the first direction D1 and connectedto the data lines and the detour data lines, respectively.

FIGS. 13A and 13B illustrate cross-sectional views of a displayapparatus according to an example embodiment.

Referring to FIGS. 13A and 13B, the display apparatus may besubstantially same as the display apparatus of FIGS. 3A and 3B, exceptthat a detour data line CDL is disposed below a buffer layer 110 and asecond insulating layer is omitted. Therefore, the repetitivedescription will be simplified.

The display apparatus may include a base substrate 100, a detour dataconductive pattern, a buffer layer 110, a gate insulation layer 120, agate conductive pattern, a data insulation layer 130, an insulationpattern 135, a data conductive pattern, a first thin film transistorTFTa, a second first thin film transistor TFTb, a first insulation layer140, a first electrode EL1, a pixel defining layer 160, a light emittingstructure 170, a second electrode EL2 and a thin film encapsulation(TFE) layer 180.

The detour data conductive pattern may be disposed on the base substrate100. The detour data conductive pattern may include a detour data lineCDL. The detour data line CDL may include a first detour data line CDL1.

The buffer layer 110 may be disposed on the base substrate 100 on whichthe detour data conductive pattern is disposed.

An active pattern may be disposed on the buffer layer 110. The activepattern may include a first active pattern ACTa of the first thin filmtransistor TFTa, which is disposed in the display area DA and forms apixel structure, and a second active pattern ACTb, which is disposed inthe peripheral area PA and forms a driving circuit. The first activepattern ACTa may include a first drain region Da, a first source regionSa, and a first channel region Ca. The second active pattern ACTb mayinclude a second drain region Db, a second source region Sb, and asecond channel region Cb.

The gate insulation layer 120 may be disposed on the active pattern. Thegate conductive pattern may be disposed on the gate insulation layer120. The gate conductive pattern may include a first gate electrode GEaof the first thin film transistor TFTa, a second gate electrode GEb ofthe second thin film transistor TFTb, and a signal line such as a gateline for transmitting a signal to drive the pixel.

The data insulation layer 130 may be disposed on the gate insulationlayer 120 on which the gate conductive pattern is disposed.

The insulation pattern 135 may be disposed on the base substrate 100 inthe folding area FA where the buffer layer 110, the gate insulationlayer 120, and the data insulation layer 130 are not formed or removed.The detour data line CDL may be covered by the insulation pattern 135 inthe folding area FA.

The data conductive pattern may be disposed on the data insulation layer130 and the insulation pattern 135.

The data conductive pattern may include a first source electrode SEa anda first drain electrode DEa of the first thin film transistor TFTa, anda second source electrode SEb and a second drain electrode DEb of thesecond thin film transistor TFTb and a signal line such as a data lineDL for transmitting a signal to drive the pixel. In addition, the dataconductive pattern may include terminals of the pad portion BP.

The data line DL may include a first data line DL1. The first data lineDL1 may be electrically connected to the first detour data line CDL1 inthe peripheral area PA through a first contact hole CNT1 formed throughthe data insulation layer 130 and the gate insulation layer 120 bycontacting the first detour data line CDL1.

The pad portion BP may be electrically connected to the detour data lineCDL through an additional contact hole (not shown) formed through thedata insulation layer 120, the gate insulation layer 120 and the bufferlayer 110 in the peripheral area PA.

The first insulation layer 140 may be disposed on the data insulationlayer 130 on which the data conductive pattern is disposed.

The first electrode EL1 may be disposed on the first insulation layer140. The pixel defining layer 160 may be disposed on the firstinsulation layer 140 on which the first electrode EL1 is disposed. Thelight emitting structure 170 may be positioned on the first electrodeEL1 exposed by an opening of the pixel defining layer 160. The secondelectrode EL2 may be disposed on the pixel defining layer 160 and thelight emitting structures 170.

The thin film encapsulation (TFE) layer 180 may be formed on the pixeldefining layer 160 and the second electrode EL2. The TFE layer 180 mayinclude a first inorganic layer 182, an organic layer 184 and a secondinorganic layer 184.

According to the present embodiment, the display apparatus furtherincludes the detour data conductive pattern, as compared to the generaldisplay apparatus. However, the detour data conductive pattern isdisposed under the buffer layer 110 between the buffer layer 110 and thebase substrate 100, so that a width of the peripheral area PA can bereduced without additional insulating layer structure.

FIGS. 14 and 15 illustrate views showing a comparison between aperipheral area of a display apparatus according to the related art anda peripheral area of a display apparatus according to an embodiment.

Referring to FIG. 14, according to a general display apparatus, first ton-th data lines DL1 to DLn corresponding to an edge of the display areaDA extend to a peripheral area PAa to form spider lines SL to beconnected to the pad part BP. As a result, the width of the peripheralarea PA in which the spider lines SL are formed is increased, and anon-display area of the display apparatus is increased.

Referring to FIG. 15, according to a display apparatus, first to n-thdata lines DL1 to DLn corresponding to an edge of the display area DAare connected to first to n-th detour data lines CDL1 to CDLn throughfirst to n-th contact holes CNT1 to CNTn in a peripheral area PA. Thefirst through n-th detour data lines CDL1 to CDLn are connected to thepad portion BP through the display area DA. Thus, the spider line of theprior art can be omitted. As a result, a width of the peripheral area PAis narrowed (compared with the peripheral area PAa of the generaldisplay apparatus shown by the dotted line in the figure), and anon-display area of the display apparatus may be reduced.

By way of summation and review, a display apparatus includes a displayarea in which an image is displayed and a peripheral area that is anon-display area around the display area. Efforts have been made toreduce a width of the peripheral area. According to embodiments, datalines disposed in an edge portion of a display area, in a roundedportion at edges of a front portion of a display area or left and rightsides of a circular display area may be electrically connected to a padportion in a peripheral area through detour data lines. Accordingly,there is no spider line connected to the data line in the peripheralarea adjacent to the edge portion and the rounded portion. As a result,a width of the peripheral area can be reduced.

In addition, a folding area may be folded, and a driver area may bedisposed on a back surface of the display area to overlap with thedisplay area. Thus, a display apparatus in which the non-display area isminimized can be provided. In particular, embodiments provide a displayarea in which a size of a non-display peripheral area may be reduced.

Example embodiments have been disclosed herein, and although specificterms are employed, they are used and are to be interpreted in a genericand descriptive sense only and not for purpose of limitation. In someinstances, as would be apparent to one of ordinary skill in the art asof the filing of the present application, features, characteristics,and/or elements described in connection with a particular embodiment maybe used singly or in combination with features, characteristics, and/orelements described in connection with other embodiments unless otherwisespecifically indicated. Accordingly, it will be understood by those ofskill in the art that various changes in form and details may be madewithout departing from the spirit and scope thereof as set forth in thefollowing claims.

What is claimed is:
 1. A display apparatus, comprising: a display areain which an image is displayed and a peripheral area that is anon-display area; a base substrate; a plurality of data lines located onthe base substrate in the display area and extending to the peripheralarea; a plurality of detour data lines on the base substrate in thedisplay area and in the peripheral area; and a pad portion in theperipheral area, the detour data lines and at least one of the datalines being directly connected to the pad portion, and at least one ofthe data lines not being directly connected to the pad portion, whereinat least one of the data lines not directly connected to the pad portionis electrically connected to the detour data line.
 2. The displayapparatus as claimed in claim 1, further comprising: an insulation layerbetween the data lines and the detour data lines, and a contact holeextending through the insulation layer in the peripheral area, whereinthe at least one of the data lines not directly connected to the padportion is electrically connected to the detour data line through thecontact hole.
 3. The display apparatus as claimed in claim 2, whereinthe detour data line overlaps the data lines in the display area.
 4. Thedisplay apparatus as claimed in claim 3, further including a pluralityof pixels having a matrix form in a first direction and a seconddirection perpendicular to the first direction, the plurality of pixelsincluding a thin film transistor in the display area, wherein: the datalines extend in the second direction, and the pad portion is disposed inthe peripheral area adjacent to the display area in the seconddirection.
 5. The display apparatus as claimed in claim 4, wherein: afolding area is in the peripheral area between the pad portion and thedisplay area, and the base substrate in the folding area is bent suchthat the pad portion overlaps at least a portion of the display area. 6.The display apparatus as claimed in claim 5, wherein at least one of thedata lines overlaps one of the detour data lines in the folding area. 7.The display apparatus as claimed in claim 6, further comprising: abuffer layer on the base substrate; an active layer on the buffer layer;a gate insulation layer on the active layer; a data conductive patternincluding the data lines on the gate insulation layer; and a datainsulation layer on the data conductive pattern, wherein: the bufferlayer, the gate insulating layer, and the data insulating layer are notpresent in the folding area, and an insulating pattern is on the basesubstrate in the folding area.
 8. The display apparatus as claimed inclaim 4, wherein: the display area includes a front portion on a planedefined by the first direction and the second direction and an edgeportion adjacent to the front portion in the first direction, the datalines are in the front portion and in the edge portion, and the edgeportion is bent toward a third direction perpendicular to the firstdirection and the second direction.
 9. The display apparatus as claimedin claim 8, wherein: the data lines in the edge portion are connected tothe pad portion through the detour data line, and the data lines in thefront portion are connected to the pad portion without a connectionpassing through the detour data line.
 10. The display apparatus asclaimed in claim 4, wherein: an edge portion of the display areaincludes a rounded portion, the data lines are in the rounded portionand in a middle of the display area; the data lines in the roundedportion are connected to the pad portion through the detour data line,and the data lines in the middle of the display area are connected tothe pad portion without a connection passing through the detour dataline.
 11. The display apparatus as claimed in claim 4, wherein: thedisplay area is circular, the data lines are in a side of the displayarea in the first direction and in a middle of the display area; thedata lines located at a side of the display area in the first directionare electrically connected to the pad portion through the detour dataline, and the data lines in the middle of the display area are connectedto the pad portion without a connection passing the detour data line.12. The display apparatus as claimed in claim 4, wherein each of thepixels includes: a contact pad located on the insulation layer andelectrically connected to the thin film transistor; a first electrodeelectrically connected to the contact pad; a second electrode on thefirst electrode; and a light emitting structure between the firstelectrode and the second electrode, wherein the detour data lines andthe contact pad are formed from a same layer.
 13. The display apparatusas claimed in claim 4, wherein the detour data lines are between thedata lines and the base substrate.
 14. The display apparatus as claimedin claim 4, wherein: the data lines include a first data line, an n-thdata line, an n+1-th data line and a x-th data line, n and x beingnatural numbers where 1<n<n+1<x), the detour data lines include a firstdetour data line and a n-th data line, the contact hole includes a firstcontact hole and an n-th contact hole, the first data line iselectrically connected to the first detour data line through the firstcontact hole, the n-th data line is electrically connected to the n-thdetour data line through the n-th contact hole, the first data line andthe n-th data line are electrically connected to the pad portion throughthe first detour data line and the n-th detour data line, the x-th dataline is electrically connected to the pad portion without a connectionpassing the detour data line.
 15. A display apparatus, comprising: adisplay area in which an image is displayed and a peripheral area thatis a non-display area; a first data line in the display area andextending to the peripheral area; a first detour data line in thedisplay area and extending to the peripheral area; an insulation layerbetween the first data line and the first detour data line to insulatethe first data line from the first detour data line; a pad portion inthe peripheral area and connected to a driving chip configured toprovide data signal to the first data line, and a first contact holethrough the insulation layer in the peripheral area, wherein: the firstdata line is connected to the first detour data line through the firstcontact hole, and the first detour data line is electrically connectedto the pad portion.
 16. The display apparatus as claimed in claim 15,further comprising: an n-th data line and x-th data line that arelocated in the display area and extend to the peripheral area, n and xbeing natural numbers where 1<n<x; an n-th detour data line that islocated in the display area and extends into the peripheral area, and ann-th contact hole through the insulation layer in the peripheral area,wherein: the n-th data line is electrically connected to the n-th detourdata line through the n-th contact hole, the n-th detour data line iselectrically connected to the pad portion, and the x-th data line iselectrically connected to the pad portion.
 17. The display apparatus asclaimed in claim 16, wherein the n-th detour data line, the first detourdata line, and the x-th data line are sequentially connected to the padportion along one direction.
 18. The display apparatus as claimed inclaim 16, further comprising: a n+1-th data line and a x+1-th data linethat are in the display area and extend to the peripheral area, wherein:the n+1-th and x+1-th data lines are electrically connected to the padportion, and the n+1-th data line, the x-th data line, the n-th detourdata line, and the first detour data line are electrically connected tothe pad portion in order along one direction.
 19. The display apparatusas claimed in claim 16, wherein: the display area includes a frontportion on a plane defined by a first direction and a second directionperpendicular to the first direction, and an edge portion adjacent tothe front portion in the first direction, the edge portion is benttoward a third direction that is perpendicular to the first and seconddirections, and the first data line is in the edge portion of thedisplay area, and the x-th data line is in the front portion.
 20. Thedisplay apparatus as claimed in claim 19, wherein: a rounded portion isat the edge of the front portion of the display area, and the displayapparatus further includes: an m-th data line at the edge portion of thedisplay area and extending to the peripheral area, m being a naturalnumber where 1<m<n; and an m-th detour data line at the edge portion ofthe display area and extending to the peripheral area, the n-th dataline is located to correspond to the round portion of the front portion,the m-th contact hole passes through the insulation layer in theperipheral area, the m-th data line is electrically connected to them-th detour data line through the m-th contact hole, and the m-th detourdata line is electrically connected to the pad portion.